docs: def channelModeModifyAcknowledge():
      """CHANNEL MODE MODIFY ACKNOWLEDGE Section 9.1.6"""
      a = TpPd(pd=0x6)
      b = MessageType(mesType=0x17)  # 00010111
      c = ChannelDescription2()
      d = ChannelMode()
      packet = a / b / c / d
      return packet